From: transfire@...
Date: 2006-07-21T08:32:28+09:00
Subject: Re: Using .each with constructors


Robert Dober wrote:

> I prefer to write
>
> class Class
>     def *(num)
>         a = []
>         num.times do
>             a << new
>         end
>         a
>      end
> end

Hmm...It's too bad that #times below returns 3. It be pretty neat if it
acted like #map in this respect instead.

  3.times { Object.new }

Also

  ([lambda{Object.new}]*3).collect{|c| c.call }

and Robert's solution lead me too:

  class Proc
    def *(i)
      a = []
      i.times{ a << call }
      a
    end
  end

  lambda{ Object.new } * 3

Which is pretty versitle. Unforunately I already have Proc#* tied up
with function composition.

T.